Question

To illustrate the effects of driving under the influence (DUI) of alcohol, a police officer brought a DUI simulator to a local high school. Student reaction time in an emergency was measured with unimpaired vision and also while wearing a pair of special goggles to simulate the effects of alcohol on vision. For a random sample of nine teenagers, the time (in seconds) required to bring the vehicle to a stop from a speed of 60 miles per hour was recorded. Construct a 95% confidence interval for the mean difference in stopping time for impaired students versus normal students.

Student: |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |

Normal: |
4.47 | 4.24 | 4.58 | 4.65 | 4.31 | 4.80 | 4.55 | 5.00 | 4.79 |

Impaired: |
5.77 | 5.67 | 5.51 | 5.32 | 5.83 | 5.49 | 5.23 | 5.61 | 5.63 |

Conditions:

In Minitab Express, enter the given data in two separate columns,
use DATA -> Formula to calculate the differences
*d _{i}* as

a) The P-value from the Anderson-Darling test of normality is ____. (Do not round.)

b) The necessary conditions for constructing a confidence
interval for μ_{d} ____(**are** / **are
not**) satisfied.

c) The appropriate critical value for this confidence interval
is t_{α/2} = _______. (Report critical values as they
appear in the table.)

Confidence Interval:

d) We are 95% confident that impaired students take between______
(*lower*) and _______ (*upper*) seconds longer to
come to a complete stop than normal. Report your answers rounded to
3 decimal places, where applicable.

Answer #1

a) The P-value from the Anderson-Darling test of normality is 0.063. (Do not round.)

b) The necessary conditions for constructing a confidence
interval for μd ____(**are**) satisfied.

c) The appropriate critical value for this confidence interval is tα/2 = 2.306. (Report critical values as they appear in the table.)

Confidence Interval:

d) We are 95% confident that impaired students take between 0.688
(*lower*) and 1.238 (*upper*) seconds longer to come
to a complete stop than normal. Report your answers rounded to 3
decimal places, where applicable.

To illustrate the effects of driving under the influence (DUI)
of alcohol, a police officer brought a DUI simulator to a local
high school. Student reaction time in an emergency was measured
with unimpaired vision and also while wearing a pair of special
goggles to simulate the effects of alcohol on vision. For a random
sample of nine teenagers, the time (in seconds) required to bring
the vehicle to a stop from a speed of 60 miles per hour was...

To illustrate the effects of driving under the influence (DUI)
of alcohol, a police officer brought a DUI simulator to a local
high school. Student reaction time in an emergency was measured
with unimpaired vision and also while wearing a pair of special
goggles to simulate the effects of alcohol on vision. For a random
sample of nine teenagers, the time (in seconds) required to bring
the vehicle to a stop from a speed of 60 miles per hour was...

To illustrate the effects of driving under the influence (DUI)
of alcohol, a police officer brought a DUI simulator to a local
high school. Student reaction time in an emergency was measured
with unimpaired vision and also while wearing a pair of special
goggles to simulate the effects of alcohol on vision. For a random
sample of nine teenagers, the time (in seconds) required to bring
the vehicle to a stop from a speed of 60 miles per hour was...

To illustrate the effects of driving under the influence (DUI)
of alcohol, a police officer brought a DUI simulator to a local
high school. Student reaction time in an emergency was measured
with unimpaired vision and also while wearing a pair of special
goggles to simulate the effects of alcohol on vision. For a random
sample of nine teenagers, the time (in seconds) required to bring
the vehicle to a stop from a speed of 60 miles per hour was...

A high school wanted to teach students about the effects of
driving while under the influence. A police officer allowed
students to wear special goggles that simulated the effects of
driving while impaired. A random sample of eight students was
selected. The reaction time it took for each student to stop from a
speed of 55 mph was recorded while the student was not wearing the
goggles (unimpaired) and then again while wearing the goggles
(impaired). Construct a 95% confidence...

Subject
1
2
3
4
5
6
7
8
9
Normal, Upper X Subscript iXi
4.494.49
4.344.34
4.584.58
4.564.56
4.314.31
4.834.83
4.594.59
5.005.00
4.794.79
Impaired, Upper Y Subscript iYi
5.775.77
5.675.67
5.515.51
5.295.29
5.905.90
5.495.49
5.235.23
5.615.61
5.635.63
To illustrate the effects of driving under the influence (DUI)
of alcohol, a police officer brought a DUI simulator to a local
high school. Student reaction time in an emergency was measured
with unimpaired vision and also while wearing a pair of...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 6 minutes ago

asked 7 minutes ago

asked 10 minutes ago

asked 24 minutes ago

asked 24 minutes ago

asked 24 minutes ago

asked 47 minutes ago

asked 49 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago